Results 31 to 40 of about 1,447,658 (298)

Connected and connectivity multifunctions [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
Conditions are given under which multifunctions which preserve connected sets will have a connected graph.
openaire   +2 more sources

Graph Theory on Brain Cortical Sources in Parkinson’s Disease: The Analysis of ‘Small World’ Organization from EEG

open access: yesSensors, 2021
Parkinson’s disease (PD) is the second most common neurodegenerative disease in the elderly population. Similarly to other neurodegenerative diseases, the early diagnosis of PD is quite difficult.
Fabrizio Vecchio   +8 more
doaj   +1 more source

Using transfer entropy to measure the patterns of information flow though cortex : application to MEG recordings from a visual Simon task [PDF]

open access: yes, 2009
Poster presentation: Functional connectivity of the brain describes the network of correlated activities of different brain areas. However, correlation does not imply causality and most synchronization measures do not distinguish causal and non-causal ...
Pipa, Gordon   +3 more
core   +1 more source

Connectivity Functions and Polymatroids

open access: yes, 2016
A {\em connectivity function on} a set $E$ is a function $\lambda:2^E\rightarrow \mathbb R$ such that $\lambda(\emptyset)=0$, that $\lambda(X)=\lambda(E-X)$ for all $X\subseteq E$ and that $\lambda(X\cap Y)+\lambda(X\cup Y)\leq \lambda(X)+\lambda(Y)$ for
Jowett, Susan   +2 more
core   +1 more source

State and trait characteristics of anterior insula time-varying functional connectivity. [PDF]

open access: yes, 2020
The human anterior insula (aINS) is a topographically organized brain region, in which ventral portions contribute to socio-emotional function through limbic and autonomic connections, whereas the dorsal aINS contributes to cognitive processes through ...
Allen, Isabel   +18 more
core  

State-dependent changes of connectivity patterns and functional brain network topology in Autism Spectrum Disorder [PDF]

open access: yes, 2012
Anatomical and functional brain studies have converged to the hypothesis that Autism Spectrum Disorders (ASD) are associated with atypical connectivity.
Barttfeld, Pablo   +6 more
core   +2 more sources

Rainbow Connection in 3-Connected Graphs [PDF]

open access: yesGraphs and Combinatorics, 2012
An edge-colored graph $G$ is rainbow connected if any two vertices are connected by a path whose edges have distinct colors. The rainbow connection number of a connected graph $G$, denoted by $rc(G)$, is the smallest number of colors that are needed in order to make $G$ rainbow connected.
Li, Xueliang, Shi, Yongtang
openaire   +3 more sources

Aerodynamic Uncertainty Quantification for Tiltrotor Aircraft

open access: yesAerospace, 2022
The tiltrotor has unique flight dynamics due to the aerodynamic interference characteristics. Multiple aerodynamics calculation approaches, such as the CFD method, are utilised to characterise this feature.
Ye Yuan, Douglas Thomson, David Anderson
doaj   +1 more source

On the strengths of connectivity and robustness in general random intersection graphs [PDF]

open access: yes, 2014
Random intersection graphs have received much attention for nearly two decades, and currently have a wide range of applications ranging from key predistribution in wireless sensor networks to modeling social networks.
Gligor, Virgil, Yağan, Osman, Zhao, Jun
core   +1 more source

Predictive Probability Density Mapping for Search and Rescue Using an Agent-Based Approach With Sparse Data

open access: yesIEEE Access
Predicting the location where a lost person could be found is crucial for search and rescue operations with limited resources. To improve the precision and efficiency of these predictions, simulated agents can be created to emulate the behavior of the ...
Jan-Hendrik Ewers   +2 more
doaj   +1 more source

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